GMC Jimmy 1970-1972, Steel Long Tube 4-2-1 Tri-Y Exhaust Headers by Doug Thorley Headers®. Primary Tubing Diameter: 1.625". Emissions: CARB compliant. Header Style: Long Tube. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an affordable cost.
Fitment notes: This is a CARB compliant part, legal for use on vehicles built to meet CARB standards and/or registered in California and other states which follow CARB standards.
|Header Material: Steel|
|Header Style: Long Tube|
|Primary Diameter: 1.625"|
|Emissions: CARB compliant|
|Finish: Silver Ceramic Coated|
|Weld Up: Yes, adapters must be welded to exhaust system|
|Primary Tube Gauge: 14 Gauge|
|Flange Thickness: 3/8"|
|Bolts and/or Studs Included: Yes|
|Gaskets Included: Yes|
|Y-Pipe (Crossover) Included: No|
|Quantity: Sold as a Pair|
|Warranty: Limited Lifetime to original purchaser|
For over 50 years, Doug Thorley Headers has been an innovator in the automotive aftermarket. Driven by a passion for performance and superior quality, they are committed to developing 100% American-made products that will reliably deliver maximum horsepower and torque. Doug Thorley Headers® has been pushing the limits of automotive technology since they first invented the Tri-Y header in 1958, and they do it all on American soil.